http://lod.bco-dmo.org/id/dataset/805916
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2020-03-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016
2020-03-16
publication
2020-03-16
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-03-20
publication
https://doi.org/10.26008/1912/bco-dmo.805916.1
Martial Taillefert
Georgia Institute of Technology
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Taillefert, M. (2020) Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-03-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.805916.1 [access date]
Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016 Dataset Description: Methods and Sampling: <p>Sediments were collected and profiled immediately with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator (Beckler et al., 2016).</p>
<p>Sediment cores were obtained by a MC-800 multi-corer and profiled within 30 minutes with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator. O₂(aq), Mn(II), Fe(II), Org-Fe(III), FeS(aq), and SH2S were measured by voltammetry using non-invasive mercury/gold (Hg/Au) microelectrodes (Luther et al., 2008) in intact sediment cores. Org-Fe(III) and FeS(aq) cannot be quantified by these methods and are reported in current intensities.</p>
<p><strong>Problem report:</strong> Some of the data are missing because of electrostatic interferences that typically occur at time on ships.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1438648 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1438648
completed
Martial Taillefert
Georgia Institute of Technology
404-894-6043
School of Earth and Atmospheric Sciences 311 Ferst Dr. NE
Atlanta
GA
30332
USA
mtaillef@eas.gatech.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Year
Month
Day
Collection_Type
Station
Lon
Lat
Sediment_depth
O2
sdO2
Mn_II
sdMn_II
Fe_II
sdFe_II
Org_Fe_III
sdOrgFe_III
FeS_aq
sdFeS_aq
SH2S
sdSH2S
date
MC-800 multi-corer
Electrochemical analyzer
theme
None, User defined
year
month of year
day of month
instrument
station
longitude
latitude
depth below seafloor
dissolved Oxygen
Manganese
Iron
Sulfur (S)
date
featureType
BCO-DMO Standard Parameters
Multi Corer
Voltammetry Analyzers
instrument
BCO-DMO Standard Instruments
SAV-16-16
service
Deployment Activity
Cape Lookout Continental Shelf and Slope
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments
https://osprey.bco-dmo.org/project/743719
Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments
<p><em>NSF Award Abstract:</em><br />
Iron is a limiting nutrient in the world's oceans and plays a key role in regulating the growth of phytoplankton. The main sources of iron to the open ocean are the atmosphere, through wind-blown terrestrial dust, and the seafloor, through input from continental shelf sediments. While atmospheric inputs have been well-studied, the oceanic input of iron from sediments has only sparsely been measured and, as a result, the relative importance of the sediment-derived iron to the iron pool and, ultimately, primary productivity in the oceans is poorly understood. In this study, researchers will examine the chemical properties of sediment-derived iron in the oceans to assess its contribution to the iron used by phytoplankton. Results from this study will further our understanding of iron inputs to the ocean and their importance to ocean primary productivity. The project will contribute to the training of graduate students, as well as provide educational opportunities such as a day at sea for undergraduate students in engineering and physical science.</p>
<p>The atmosphere and continental margin sediments are the main source of the limiting nutrient iron (Fe) to the open ocean. Yet, the chemical form of iron from sediments has not been well examined and only quantified as reduced iron or the dissolved iron passing through 0.45 µm filters. The kinetics of iron oxygenation suggests it should precipitate rapidly in the overlying waters, challenging the view that sediments are important sources of iron for primary production. To establish whether the flux of iron from sediments has important implications for primary productivity, possibly rivaling atmospheric inputs, it is necessary to demonstrate that ferric iron originating in sediments is under the form of stable iron species with potential for a high residence time in the water column. The overall objective of this project is to test the hypotheses that iron fluxing across the sediment-water interface in continental margin sediments is dissolved under the form of organic-Fe(III) complexes and that the magnitude of the iron flux is influenced by the redox conditions in the overlying waters, the composition of the complexes, and the biogeochemical processes in the underlying sediments. To test these hypotheses, the flux and speciation of dissolved Fe(III) will be quantified in the sediments of the Carolina depocenter and the Gulf of Mexico, and the biogeochemical processes regulating the production and the flux of iron as a function of the redox regime of the environment will be determined using in situ measurements and state-of-the-art voltammetric and chromatographic techniques.</p>
Soluble Fe Fluxing
largerWorkCitation
project
eng; USA
oceans
Cape Lookout Continental Shelf and Slope
-76.605
-75.799
33.869
34.635
2016-05-17
2016-05-26
Northern South Atlantic Bight (Cape Lookout, NC) and Northern Gulf of Mexico
0
BCO-DMO catalogue of parameters from Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/806040.rdf
Name: Year
Units: unitless
Description: <p>Year</p>
http://lod.bco-dmo.org/id/dataset-parameter/806041.rdf
Name: Month
Units: unitless
Description: <p>Month</p>
http://lod.bco-dmo.org/id/dataset-parameter/806042.rdf
Name: Day
Units: unitless
Description: <p>Day</p>
http://lod.bco-dmo.org/id/dataset-parameter/806043.rdf
Name: Collection_Type
Units: unitless
Description: <p>Instrument used for collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/806044.rdf
Name: Station
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/806045.rdf
Name: Lon
Units: decimal degrees East
Description: <p>Longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/806046.rdf
Name: Lat
Units: decimal degrees North
Description: <p>Latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/806047.rdf
Name: Sediment_depth
Units: millimeters (mm)
Description: <p>Sediment depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/806048.rdf
Name: O2
Units: uM (micromolar)
Description: <p>Dissolved oxygen</p>
http://lod.bco-dmo.org/id/dataset-parameter/806049.rdf
Name: sdO2
Units: uM (micromolar)
Description: <p>Standard deviation of O2</p>
http://lod.bco-dmo.org/id/dataset-parameter/806050.rdf
Name: Mn_II
Units: uM (micromolar)
Description: <p>Dissolved manganese(II)</p>
http://lod.bco-dmo.org/id/dataset-parameter/806051.rdf
Name: sdMn_II
Units: uM (micromolar)
Description: <p>Standard deviation of Mn_II</p>
http://lod.bco-dmo.org/id/dataset-parameter/806052.rdf
Name: Fe_II
Units: uM (micromolar)
Description: <p>Dissolved iron(II)</p>
http://lod.bco-dmo.org/id/dataset-parameter/806053.rdf
Name: sdFe_II
Units: uM (micromolar)
Description: <p>Standard deviation of Fe_II</p>
http://lod.bco-dmo.org/id/dataset-parameter/806054.rdf
Name: Org_Fe_III
Units: nA
Description: <p>Dissolved organic-Fe(III) complexes</p>
http://lod.bco-dmo.org/id/dataset-parameter/806055.rdf
Name: sdOrgFe_III
Units: nA
Description: <p>Standard deviation of Org_Fe_III</p>
http://lod.bco-dmo.org/id/dataset-parameter/806056.rdf
Name: FeS_aq
Units: nA
Description: <p>Dissolved molecular clusters of FeS</p>
http://lod.bco-dmo.org/id/dataset-parameter/806057.rdf
Name: sdFeS_aq
Units: nA
Description: <p>Standard deviation of FeS_aq</p>
http://lod.bco-dmo.org/id/dataset-parameter/806058.rdf
Name: SH2S
Units: uM (micromolar)
Description: <p>Dissolved inorganic sulfur</p>
http://lod.bco-dmo.org/id/dataset-parameter/806059.rdf
Name: sdSH2S
Units: uM (micromolar)
Description: <p>Standard deviation of SH2S</p>
http://lod.bco-dmo.org/id/dataset-parameter/806060.rdf
Name: date
Units: unitless
Description: <p>Date; format: yyyy-mm-dd</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
99629
https://darchive.mblwhoilibrary.org/bitstream/1912/25552/1/dataset-805916_electrochemical-data-cl2016__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.805916.1
download
onLine
dataset
<p>Sediments were collected and profiled immediately with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator (Beckler et al., 2016).</p>
<p>Sediment cores were obtained by a MC-800 multi-corer and profiled within 30 minutes with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator. O₂(aq), Mn(II), Fe(II), Org-Fe(III), FeS(aq), and SH2S were measured by voltammetry using non-invasive mercury/gold (Hg/Au) microelectrodes (Luther et al., 2008) in intact sediment cores. Org-Fe(III) and FeS(aq) cannot be quantified by these methods and are reported in current intensities.</p>
<p><strong>Problem report:</strong> Some of the data are missing because of electrostatic interferences that typically occur at time on ships.</p>
Specified by the Principal Investigator(s)
<p>Electrochemical data were processed using Voltint (Bristow and Taillefert, 2008), a Matlabᵀᴹ-based software developed for these applications.</p>
<p><strong>BCO-DMO Processing:</strong><br />
- added date column using original year, month, and day columns.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
MC-800 multi-corer
MC-800 multi-corer
PI Supplied Instrument Name: MC-800 multi-corer PI Supplied Instrument Description:Sediment cores were obtained by a MC-800 multi-corer. Instrument Name: Multi Corer Instrument Short Name:Multi Corer Instrument Description: The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/51/
Electrochemical analyzer
Electrochemical analyzer
PI Supplied Instrument Name: Electrochemical analyzer PI Supplied Instrument Description:Electrochemical analyzer: DLK-100 and DLK-70 with EX-MAN-1 micromanipulator (Analytical Instrument Systems, Inc.). Instrument Name: Voltammetry Analyzers Instrument Short Name:Voltammetry Analyzers Instrument Description: Instruments that obtain information about an analyte by applying a potential and measuring the current produced in the analyte. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB35/
Cruise: SAV-16-16
SAV-16-16
R/V Savannah
Community Standard Description
R/V Savannah
vessel
SAV-16-16
Martial Taillefert
Georgia Institute of Technology
R/V Savannah
Community Standard Description
R/V Savannah
vessel